Wrench.



A. A. BINDEL.

WRENCH.

APPLICATION FILED MAR. I7. I91].

1,250,082 Patented Dec. 11,1917.

2 SHEETSSHEET I INVENTOR WITI:\IEISSES I I ATTORNEV A. A. BINDEL.

WRENCH.

APPLICATION EILED MAR. 17. 1912.

' Patented Dec. 11,1917.

2 SHEETS-SHEET 2 all . m .m m ml m \N m A Iv a B. fl v B,

WITNESSES ALFRED annvnnnjosnaomn, Wisconsin? I I 1 ENCH.

To'aZZ whom it may concern:

. Be it'known that I, ALFRED A. BINDEL, a citizen of the United States, residing at Bacine,"in;the county of Racine'and State ofWVisconsin, have-invented new and use ful Improvementsin Wrenches, of which the following is a specification. 3;.

T his invention. comprehends improvements in wrenches and relatesmore particularly ;to amonkey wrench having arfixedjaw and a slidable aw, which 1s connected to and movable by a carriage having acam -or eccentric lev'erfor tightening themovable jaw: agalnstanut. 15 J Another, object of theinvent'ion, is $01 51 vide asimple. and practical wrenchgofthis type .lwhichmay be easily and quickly 'as-' isembled, which is substantial and practical and which maybe cheaplymanufactured.

\Vith these and-other objects in view. as

,willbecome more apparent as the description proceeds,.the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter fullydleSCribed, illustrated and claimed.

1n the drawings, 1-

Figure 1 is a side elevation of the wrench;

Fig. 2 is a longitudinal sectional view therethrough.

Fig. 3 is a transverse sectional view on the plane of line 33 of Fig. 1.'

Fig. 4 is a sectional view on the plane of line 14 of Fig. 1.

Fig. 5 is a detail perspective View of the I member, embodying suflicient strength, howsliding jaw. Fig. 6 1s a perspective view of the carria ge.

Referring in detail to the drawings by numerals, 1 designates the shank of the wrench having a fixed jaw 2 on one end thereof and a handle 3 on .the other end thereof, said handle being secured against the head 4 by the nut 5. formed with a longitudinal opening through which the shank extends and is secured to the shank by a rivet 6. Forwardly facing teeth 7 are formed on one edge of the shank between the fixed jaw 2 and the head 4, and longitudinal channels 8 are formed in the sides of the shank.

A movable jaw 9 having a shank opening 10 is slidable on the shank and is formed on its rear side adjacent the side edges of the shank opening 10 with a pair of laterally and rearwardly extending arms 11 having Application filed March 17, 1917. v Serial No. 155,596.;

The head 4 is j Specification of re teisr teatf yaf nt' e 1 1; 191 7,

outwardly projecting heads or flanges 12on their rear ends. Thearmsand heads lie entirely ontheouter sides of the plates of the. side Walls of-the "shank; opening 10 vso that the'movable jaw maybe easily. slipped .on to the shank before the head .41 and handle are positioned.

-A..carriage13 having a opening 1s slidably mounted onfth'e shank and is provided with a-cam or. eccentric lever 15.

pivotally secured'betweenthe carriage ears 16 by a-pivot o r=othersuitablefastener 17 A springrack118 having rearwardly facing.

teeth 19 is secured adjacentgone end-within the shank? opening 1 1 to the topwall therepreferablymounted on the bottom wall of riage are formed with the slots or openings 22" ;intermediate their ends and the unslotted port ons 23 are formed on their opposed a s witherewfl or: eha ne thr which the arms .11 slide. 1

- in assembling ,the wrench, the slidable ;jaW: is. first slipped on'the shank .1, then the carriage is positioned and by springing the arms 11 into the channels 8 of the shank,v

their heads 12 may be moved into the position shown in Fig. 1. The head 4 and ban:

.dle 3 are then secured in position, after which the wrench is ready for use.

The spring 21 is a comparatively weak operator from the portion thereof to which the spring 21 is secured, will cause a movement of the said carriage to bring the teeth of the rack bar out of engagement with the teeth 7 of the shank, permitting the manual adjustment in a longitudinal direction of the carriage, and,of course, of the slidable jaw 9 carried by the carriage. \Vhen such adjustment is made and the article to be gripped is arranged between the jaws 2 and or by screws or.othersuitablefaStenerS 20 j I and said teeth=19 arejnorm'ally held in engagement with the teeth 7 by afiat springQl I 9, the lever 15 is swung upon its pivot 17 bringing its cam head into contacting engagement with the springrack is, forcing the teeth of the latter in engagement with the teeth 7 of the shank l, the said cam head alsocontacting with the rear face of the jaw 9, moving the same longitudinally outward of the carriage and in thedirection of the stationary jaw 2, thus effecting a firmer grip upon the article between the jaws 2 and 9. Thearrangement of the arms 11 permits a free limited longitudinal movement of the jaw 9 with respect to the carriage 13, the flange or olfset ends 12. of the said arms, however, being arranged to contact with the outer unslotted portion 23 0f the carriage limits the outward movement of the jaw 9 with respect to the carriage, while the contacting engagement of the jaw 9 with one of the ends of the carriage will, of course, limit the inward movement of the said jaw 9- with respect tothe carriage 13.

What I claim is 1'. A wrench including a fixed aw having a toothed shank, a carriage slidable on said shank, a spring toothed rack carried by the carriage, spring meansbetween the carriage and shank for normally sliding the carriage laterally of the shank to bring the toothed rack to engage with the teeth of the shank,

a movable jaw on the shank, means between said' movable jaw and the carriage for associating the said 'jaw to the carriage to permit of the limited longitudinal move- (topics of this patent may be obtained for ment of the movable aw with respect to the carriage, and a PlXOlZQCl lever having a cam head'on the carriage and designed, when the said lever is swung in one direction, to contact with the spring rack to force the same into engagement with the teeth of the shank and to also contact with the inner face of the movable jaw to force the latter in the direction of the stationary jaw.

2. A wrench includinga stationary jaw having an angular toothed shank, a 'carriage slidable on said shank, a spring rack having one of its ends secured to said car.-

riage, a slight spring connected to'the carriage and designed to slide the carriage laterally of the shank to bringthe teeth of the rack in engagement with the teeth "offthe shank, a slidable jaw on the shank outward of the carriage, angularly extending arms upon said jaw received in depressions in the carriage, said arms having angular ends,

ALFRED A. BINDEL,

Washington, D. 3, r 

